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Post by studabear on Jun 24, 2013 22:09:53 GMT 1
What drill bits are the members using, any good or ones to avoid, I need a set for at work.
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Post by Karl on Jun 25, 2013 18:48:20 GMT 1
I've got some cheapo turbo titanium blah blah drill bits which seem to be working well
Cheap or expensive I think it's how you treat your bits which is the key
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Post by studabear on Jun 25, 2013 20:19:46 GMT 1
The firm should supply them in my opinion, they are a consumable in my eyes. But they don't supply them.
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Post by critch on Jun 25, 2013 20:19:59 GMT 1
I got a cheap set of bits of eBay and have been pretty good tbh
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remmington
Apprentice
Owns Spark Eroder
Posts: 4,976
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Post by remmington on Jun 25, 2013 20:38:40 GMT 1
We supply drills bits in our workshop for the lads to use, they are a consumable!
Cobalt drill bits are what you need!
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Post by studabear on Jun 25, 2013 21:11:08 GMT 1
I have thought about buying a drill sharpener, but I've never used 1 before so wonder if they are worth the money?
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Post by liam99 on Jun 25, 2013 21:59:54 GMT 1
We've had loads of drill bits decent and cheap, They all get ruined within a couple of minutes being used. User error but he's the boss and knows best.
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oli
Apprentice
Posts: 1,065
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Post by oli on Jun 25, 2013 23:12:32 GMT 1
I saw an interesting patient a while back. He'd been due to have an MRI scan. It uses a massively powerful liquid nitrogen cooled magnet - powerful enough to hurl an oxygen cylinder across a room - so we often X-ray people before hand to check for bits of metal, left over surgical instruments etc.
This chap was found to have a chunk of metal in his arm where a drill bit had shattered some time ago and a bit had 'scratched ' him. All healed up and sitting nicely like a small bullet near his shoulder. He had no idea it was there!
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Post by natedog on Jun 25, 2013 23:29:19 GMT 1
I've got a set of dewalt extreme self piloting titanium coated blah blah tenner from toolstation, they are brilliant. My only complaint is the set only goes up to 8mm I saw an interesting patient a while back. He'd been due to have an MRI scan. It uses a massively powerful liquid nitrogen cooled magnet - powerful enough to hurl an oxygen cylinder across a room - so we often X-ray people before hand to check for bits of metal, left over surgical instruments etc. This chap was found to have a chunk of metal in his arm where a drill bit had shattered some time ago and a bit had 'scratched ' him. All healed up and sitting nicely like a small bullet near his shoulder. He had no idea it was there! When I had my mri, they xrayed me to check for bits of metal, but neglected to tell me to remove my ring or necklace
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Post by chippie on Jun 26, 2013 17:10:55 GMT 1
I have thought about buying a drill sharpener, but I've never used 1 before so wonder if they are worth the money? Stu, I bought one of the Machinemart powered ones for around £25...they're rubbish...ok they give a nice ground finish but still rely on the person using it to grind both lands the same length.... I gave mine away.... You might as well just use a standard off hand bench grinder...!! My drill bits come from RDG tools or Chronos. HSS and quality items, had a set of the Titanium covered ones, they were sh*te... Tried cutting through some steel bar, just about to break through, the drill jammed and just twisted.... Buy cheap buy twice is my motto for tools.
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Post by studabear on Jun 26, 2013 21:34:44 GMT 1
Cheers for the heads up on the sharpener, I will give that a miss then.
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rebel
New Member
Posts: 27
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Post by rebel on Jul 2, 2013 19:06:24 GMT 1
I've got a self powered drill sharpener I bought from Snap On. blo*dy expensive at about 140 quid but it's an excellent bit of kit. Uses a diamond abrasive wheel which copes with masonary bits, as well as producing a new cutting tip on broken drills. Have to be very gentle with a freshly sharpened drill because the cutting tip bites so hard it will very easily snap the bit.
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french crap fanatic
Apprentice
french car specialist based in dagenham east london
Posts: 3,355
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Post by french crap fanatic on Jul 28, 2013 13:51:52 GMT 1
ive been using irwin make and buying from a local supplier a few at a time. they start from 50p each and are also available in half sizes. i use a small size and work upwards.seem to be doing a lot of tapping of threads recently as well. the secret to getting good use out of a drill bit is keep it cool. press hard as the bit will allow and drill slowly,use cutting fluid/oil/wd40 as needed. the local metal worker boys said you can even use water as long as you clean and dry the bit afterwards. you know when your drilling is right as you will get a nice spiral of metal cutting as you drill.
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Jul 30, 2013 11:18:49 GMT 1
I've generally always bought a few of the size I need from Wilkinsons as I've needed them. They've been ok and cheap enough to pick up a few at a time. Saves buying a set with sizes that are not needed. My way of thinking is that if the job is going to blunt or snap them its going to happen whatever.
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oli
Apprentice
Posts: 1,065
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Post by oli on Aug 5, 2013 23:39:43 GMT 1
Quote: the secret to getting good use out of a drill bit is keep it cool. press hard as the bit will allow and drill slowly,use cutting fluid/oil/wd40 as needed.
It's so true.
I used to break so many drill bits using a big hand held drill. When I got my pillar drill I couldn't believe how long the bits seemed to last - just because it's slower and you can put more pressure on it whilst keeping it cool.
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